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Finding the Fourth Proportional to 3,671.02, 5,065.86 and 1,992.40

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Solution

The fourth proportional to 3,671.02, 5,065.86 and 1,992.40 is: 2,749.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,671.02 : 5,065.86 = 1,992.40 : x
  2. Step 2: Convert to fraction form
    3,671.02/5,065.86 = 1,992.40/x
  3. Step 3: Cross multiply
    3,671.02x = 5,065.86 × 1,992.40
  4. Step 4: Simplify right side
    3,671.02x = 10,093,219.46
  5. Step 5: Solve for x
    x = 10,093,219.46/3,671.02
  6. Step 6: Final answer
    x = 2,749.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.